May 23, 2021
10:59 p.m.
On May 23, 2021, at 3:29 PM, Clive D.W. Feather via tz <tz@iana.org> wrote:
I haven't looked at the interfaces in question, but if it can't return a failure code,
localtime() can return NULL according to C99 and according to the Single UNIX Specification, and *does* return NULL for all times prior to the Epoch on a certain (non-UN*X) platform from Redmond, Washington.